Delver of the Cryptic Puzzle Solution Guide (4)

Welcome to our complete walkthrough for Delver of the Cryptic in Arknights: Endfield. This permanent endgame mode sends Administrators into dangerous, puzzle-filled Spatial Sets and Protocol Spaces, where you must overcome unique mechanics, environmental traps, and challenging combat encounters to claim rare rewards. This guide will walk you through every step, from basic mechanics to full clear solutions for all stages, so you can conquer every challenge and unlock all available loot. Today I’ll be walking you through the puzzle solution for the fourth stage-Industrial Labyrinth.

After entering the stage, go straight and turn left into a room with red lighting. Continue forward, and a metal door will open automatically.

Upon entering the new room, you will find a string of glowing yellow numbers on the wall.

Memorize these numbers and keep moving forward. A metal door will open on the left side of the room, and behind it is a long corridor.

At the end of the corridor is a treasure chest, but when you approach it, the door will close and you won’t be able to collect the chest. At the same time, new doors will open on both sides. At this point, we choose to enter the door on the left.

When you enter the left door, you will retrace the same path you just took until you return to the starting point. However, this time when you arrive, you will find a new metal door has opened to the front left—enter this door now.

After passing through the metal door on the left, you will be able to obtain the treasure chest. You will also enter a new area with constantly shifting lasers.

Follow the path on the ground toward the door on the right, and be careful to avoid the lasers.

The next area will test your short-term memory. You need to memorize the pattern of tiles that appear at the beginning. Stepping on a fake tile will make you fall into the abyss. But there’s no need to worry—this guide has already noted down exactly which tiles are safe.

After completing this twice, you’ll be able to claim the treasure chest.

After that, a metal door will open, and you’ll enter a new area—a maze. This is where you’ll need to use the numbers you memorized at the very beginning to solve the maze puzzle.

Choose Door No. 2 in the middle. Then go through Door 1, Door 3, Door 2, Door 3 in order.This follows the sequence of the numbers you noted earlier: 2-1-3-2-3.

Once you follow this sequence, you’ll enter a new area—a long corridor with many fake endpoints on both sides.

Interact with the first fake endpoint on the left side of the corridor. After interacting, you will be teleported to another fake endpoint. Continue interacting with these endpoints, and after 3 cycles, you will be teleported to a treasure chest. Once you’ve claimed the chest, you can jump down from the upper floor.

Now that we’ve collected all 3 treasure chests, we can head for the real exit.The true final destination is shown in the image below: it’s not marked as an obvious endpoint, but a closed metal door.

Finally, you will enter a room with a constantly moving laser grid. Navigate through the moving laser grid and you will reach the end.